Many cactus plants, such as the species shown in the illustration, use a special type of photosynthesis called cam photosynthesis. this specialized process allows the cactus plant to keep the stoma or leaf openings closed during the day. most other plant species keep their stoma open during daylight hours. which is the most likely reason that cactus use this special photosynthetic process?

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a. earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c. earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

Climate warming trends allow plant and insect species to inhabit larger ranges. select the best answer from the choices provided

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.